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Continuing the previous sound that is heard as a riisss .... riisss ...., the following was performed live video, showing a first part of the aquarium and even sound which reaches the interior of the same by external sounds. In the next part of the video shows the simple equipment used for uptake and at the end we hear the sounds and in this case when supplied Dahpnia.

Well I put the material used for the pickup of sounds from the aquarium.

The key as you can imagine is the hydrophone, its sensitivity and the fact that an item prepared for what is essential aquatic, initially tried with normal microphones which apantallaba and isolating the water, but never got the result optimum.

Then once we got the sound reproduction to amplification, recording, etc.., This second gizmo can be replaced by any other means, I wanted a small portable amp that was independent (batteries).

The frequencies of the sounds emitted by the mechanical action of the pharyngeal jaws are around 2000 cls. I placed a graphic analysis of the same.

Currently in these days, I'm isolating a sound produced by males when Pterophyllum scalare defend a territory. While the former was sound by the mechanical action of the jaw bone in this case if that occurs with all intent.

I find your research fascinating! I am not aware of anyone else attempting to capture sounds emitted by p. scalare.

We can see the physical actions of the male when defending his territory. So, I would imagine there are sounds emitted as well. I would be very interested in seeing your video once you are able to capture such an event.

The truth is that I do not I have news of any recordings made or issued with respect to the scalars, in fact leverage your projection considered necessary to make them known and also the value of your incremenar WEB and FORUM.

As anticipated, the next sound is issued in this case by two males, introduced in an aquarium with a female and disputing the possession of the couple. The sound sounds like a "clunk". It really is a sound made for the occasion and we can talk of a primary language.

Generally a male is placed side by side or close and proceeds to make a quick lateral contraction of the body, is a tic that can be seen patiently in the caudal fin, barely perceptible body contortion and mouth. The following videos are reduced to the scene of that very rapid contraction. In the first appreciate in full the features mentioned.

These sounds "cluck", also transmitted when a confrontation between males during these fights made ​​the contortions mentioned, emitting sounds and trying to dissuade the other, being more difficult to observe due to continued fluttering formed by males in the confrontation .